The movie may be called "Unitas We Stand," but it's quickly become "Divided Over Flacco." Joe Flacco, current Baltimore Super Bowl-winning quarterback is set to play Johnny Unitas, the late Baltimore Hall of Fame quarterback in an upcoming biopic, but not all of Unitas' surviving family is all in on this idea.

Grandson J.C. Unitas took to Facebook to disparage Flacco as "an embarrassing choice" to portray Johnny for the film's football action, per USA Today. Even though the Ravens' Flacco just stamped his championship credentials to stand in as Unitas to re-create scenes from the Baltimore Colts' epic 1958 NFL Championship victory over the Giants, J.C. just can't stand it.

"My grandfather and his legacy deserves only the best, and this is not it," J.C. said. "Has Baltimore forgotten that Trent Dilfer also won a Super Bowl while playing for Baltimore?"

"If you want a real movie, hire a real actor."

Perhaps there's a little jealousy from J.C., 24, a Baltimore native who played quarterback in college at Villanova -- a football program that competes in the same FCS Division I league as Flacco's alma mater, Delaware. At 6-0, 185 pounds, J.C. does have one point in his favor -- he does measure a lot closer to Johnny (6-1, 195) than the lanky Flacco (6-6, 245).

J.C.'s sentiment toward Flacco playing his grandfather was in line with what J.C.'s father, John Unitas Jr. had expressed earlier.

"If you want a quarterback, go with Peyton Manning," Unitas Jr. remarked to USA Today, calling Flacco a "goofball." "My father was just like that. This is a joke."

The John Unitas Jr. part of the Johnny U. family tree also is miffed that the lower-budget film is being produced by his half-brother Joe. Unitas Jr. called Joe "a guy that's just making money off" their shared father. John especially won't be happy if Joe turns out turning a profit from using Flacco on screen.

"It's like prostituting yourself. My father would have nothing to do with it. It makes me angry, but there's nothing I can do about it until they slip up," Unitas Jr. told the newspaper.

According to J.C. and John Jr., casting Flacco was already an egregious error. Meanwhile, Flacco has nothing but respect for Baltimore's glorious NFL past.

"I'm excited and honored by the opportunity to play Johnny Unitas," Flacco (@TeamFlacco) shared on Twitter on Sunday.